Sams Teach Yourself C++ in 21 Days

21: Cat::Cat()

22: {

23: itsAge = new int;

24: itsWeight = new int;

25: *itsAge = 5;

26: *itsWeight = 9;

27: }

28:

29: Cat::Cat(const Cat & rhs)

30: {

31: itsAge = new int;

32: itsWeight = new int;

33: *itsAge = rhs.GetAge(); // public access

34: *itsWeight = *(rhs.itsWeight); // private access

35: }

36:

37: Cat::~Cat()

38: {

39: delete itsAge;

40: itsAge = 0;

41: delete itsWeight;

42: itsWeight = 0;

43: }

44:

45: int main()

46: {

47: Cat Frisky;

48: cout << “Frisky’s age: “ << Frisky.GetAge() << endl;

49: cout << “Setting Frisky to 6...\n”;

50: Frisky.SetAge(6);

51: cout << “Creating Boots from Frisky\n”;

52: Cat Boots(Frisky);

53: cout << “Frisky’s age: “ << Frisky.GetAge() << endl;

54: cout << “Boots’ age: “ << Boots.GetAge() << endl;

55: cout << “setting Frisky to 7...\n”;

56: Frisky.SetAge(7);

57: cout << “Frisky’s age: “ << Frisky.GetAge() << endl;

58: cout << “boot’s age: “ << Boots.GetAge() << endl;

59: return 0;

60: }

Frisky’s age: 5

Setting Frisky to 6...

Creating Boots from Frisky

Frisky’s age: 6

Boots’ age: 6

setting Frisky to 7...

Frisky’s age: 7

Boots’ age: 6

OUTPUT

300 Day 10

LISTING10.5 continued